Paper machine



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PAPER MACHINE 45 the shaft 3,

Patented June 28, 1932 UNELFED STATS PATENT OFFICE GEORGE NICHOLAS, OF RI-IINELANDER, WISCONSIN, ASSIGNOR TO RHINELANDER PAPER CQMPANY, OF RHINELANDER, WISCONSIN PAPER MACHINE Application filed May 29,

This invention aims to provide a simple means whereby one man, instead of two, can thread unfinished paper through the calender rolls of a paper making machine.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the inven tion appertains.

With the above and other objects in view,

19 which will appear as the description proceeds,

the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 shows in elevation, a paper making machine constructed in accordance with the invention;

Figure 2 is an elevation showing the end of the machine;

Figure 3 is a sectional view showing one of the connections in plan;

Figure 4 is a diagrammatic view of the calender rolls;

Figure 5 is a section showing the clutch and attendant parts;

Figure 6 is a sectional view of the pulley of Figure 5.

The numeral 1 marks the frame of a calender machine, on which is mounted an elevated platform 2. The horizontal shaft 3, which carries the unfinished paper, is journaled on the frame 1. The superposed calender rolls appear at 4 in Figures 2 and 4 but else are omitted, for the sake of clearness, since they are common and well known.

The unfinished paper has to be carried upwardly from the shaft 3, and downwardly around the calender rolls 4 and across the guides 5. One man has to turn the roll on and another man has to attend to the threading of the paper, downwardly across the rolls 4, to the shaft 6 which carries the finished paper, this shaft being ournaled on the frame 1. From the foregoing, it will be observed that two men are required for the 1931. Serial No. 541,042.

operation described, and this invention aims to supply a means whereby one man can perform the operation alluded to.

The shaft 8 is extended'to the left of the frame 1, in Figure 1, and on the outer end of the shaft 6, a pulley 7 is journaled, the pulley being connected by a belt 8, or otherwise, with a source 9 of power. The pulley 7 is connected to the shaft 3 by a slantingtooth clutch l0, operat-ively connected intermediate its ends with a lever 11 fulcrumed intermediate its ends on a standard 12 braced at 14 from the frame 1. One end of a horizontal link 15 is pivoted to the lever 11, and the opposite end of the link is pivoted to an arm 16 on a vertical shaft 17 journaled on the frame 1 and extended above the platform 2, the shaft 17 being provided at its upper end with an operating handle 18, accessible to a person on the platform 2, although the clutch 10 may be manipulated directly, from the floor, by means of the lever 11, if desired.

The drive 87 for the shaft 8 is of such a nature that the roll on the shaft 3 has a slightly lower peripheral speed than exists in the calender rolls 4. After mounting a new roll of unfinished paper on the shaft 3, the operator throws in the clutch 10 either by means of the lever 11 or by means of the handle 18. This slowly unwinds the sheet of unfinished paper from the shaft 3 and one man, as distinguished from two, can thread the paper downwardly through the calender rolls 4. As soon as the pull of the calender rolls comes on the paper, the paper turns the shaft 3 faster than that shaft is turned from the pulley 7 by way of the clutch 10, because the calender rolls 4 have a higher peripheral speed than is imparted to the shaft 3 by the pulley 7. The clutch 10 then overruns, and is thrown out automatically, owing to the inclination of the teeth on the clutch parts. When the machine is in full operation, it may be desirable to clear the clutch parts absolutely, and this can be done by the operator, either through the medium of the lever 11 or the handle 18, motion being imparted from the handle 18 to the shaft 17, and from the shaft 17 to the lever 11, by way of the link 15.

Having thus described the invention, what is claimed is:

1. In a paper making machine having calender rolls, and a shaft for unfinished paper, means for driving the shaft at' a lower speed than the calender rolls, and a clutch connecting said means with the shaft, the clutch being an overrunning clutch, whereby it will be thrown out automatically when the speed of rotation of the shaft is increased by the pull of the calender rolls on the paper.

2. A paper making machine constructed as set forth in claim 1 and further characterized by the provision of means under the control of an operator for operating the clutch.

3. In a aper making machine having an elevated p atform, calender rolls, and a shaft for unfinished paper, means for driving the shaft at a slower speed than the calender rolls, a clutch connecting said means with the shaft, the clutch being an overrunning clutch, whereby itwill be thrown out automaticallywhen the speed of rotation of the shaft is increased by the pull of the calender rolls on the paper, and two means whereby the clutch may be actuated at the will of an operator, one of said means being located a 0 ve the platform, and the other of said means being located below the platform.

4;. In a paper making machine having calender rolls, and a shaft for unfinished pa- 1, means for driving the shaft at a slower speed than the calender rolls, and mechanism for disconnecting said means automatically, when the speed of rotation of the shaft is increased due to the pull of the calender rolls on the paper.

In testimony that I claim the foregoing as my own,I have hereto aflixed my signature.

1 GEORGE NICHOLAS. 

